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> Washington > Martha Lake
| City : | Martha Lake |
| County : | Chickasaw County, Snohomish County |
| State : | Washington (WA) |
| Land Area : | 4.55 sq mi |
| Water Area : | 0.09 sq mi |
| Latitude : | 47.8447276 |
| Longitude : | -122.2330935 |
| Population (2010): | 15,473 |
| Population Estimate (2012) : | 15,785 |
| Population Density : | 3,399.19/sq mi |
| Housing Units (2012) : | 5,906 |
| Median Household Income (2012) : | $74,721 (Washington : $59,374, USA : $53,046) |
| Median Family Income (2012) : | $81,206 (Washington : $71,939, USA : $64,585) |
| Median House Price (2012) : | $343,900 (Washington : $272,900, USA : $181,400) |